Exchange 2010 and third party certificate

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C

Chris Vavrek



Recently installed a third-party cert on my exchange 2010 and everything works fine from outside the building. When users connect internally though I do not have the fully qualified domain of my Exchange server included. Therefore I get the error 'The name on the certificate is invalid or does not match the site' When I startup Outlook I do not get this message but it occurs when I go to send a new message.

I reviewed a MSFT that was directed to Outlook 2007 clients and Exchange 2010 but we will not have any Outlook 2007 clients.

Should I redo my cert with the fqdn or might someone have another suggestion?

Thank You

Chris
 
T

TWHarrington

You can update intenal DNS and the all the internal CAS URLs to point to the same FQDN that is on your cert. Change the DNS to use the internal IP of the CAS.
 
C

Chris Vavrek



It seems as though I am now only getting the message when I try to send a new message or click File...

Thanks
 
T

TWHarrington

That seems a little bizarre. Can you recreate your profile from scratch? Are others having the issue? Does your profile get created automatically with AutoDiscover or are your manually creating it? What version of Outlook with SP version are you using?
 
B

Brian Desmond -MVP-



Can you post the names in the certificate as well as the output of Get-ClientAccessServer | fl *uri* ? What version of Outlook are you using?

Active Directory, 4th Edition - www.briandesmond.com/ad4/
 
R

Richard Pollock

One thought would be to get a certificate with subject alternative names. You can list all possible domain combinations in your SAN Cert...
 
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